CN203296712U - Safety joint - Google Patents
Safety joint Download PDFInfo
- Publication number
- CN203296712U CN203296712U CN2013203758661U CN201320375866U CN203296712U CN 203296712 U CN203296712 U CN 203296712U CN 2013203758661 U CN2013203758661 U CN 2013203758661U CN 201320375866 U CN201320375866 U CN 201320375866U CN 203296712 U CN203296712 U CN 203296712U
- Authority
- CN
- China
- Prior art keywords
- joint body
- lower contact
- outside
- top connection
- slide sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Disclosed is a safety joint. The problem that tubular columns can not be lifted when tubular column jamming happens to existing joints is mainly solved. The safety joint is characterized in that a right-hand internal thread is arranged on the upper inside of an upper joint body (1), an external thread is arranged on the lower outside of a lower joint body (2), the upper joint body (1) is connected with the outside of the lower joint body (2) through a left-hand thread, the outside of the lower joint body (2) below the upper joint body (1) is connected with an adjusting ring (4) through a left-hand thread, the lower portion of a positioning sliding sleeve (3) is fixed inside the lower joint body (2) through a fixed pin (5), an annular boss is arranged outside the upper portion of the positioning sliding sleeve (3), four gaps are formed axially in the boss, the upper portion of the upper joint body (1) is connected with four positioning pins (6), inner ends of the positioning pins (6) are arranged inside the gaps, and sealing rings are arranged inside upper and lower outer annular grooves of the positioning sliding sleeve (3). According to the safety joint, the tubular columns can be lifted when tubular column jamming happens.
Description
Technical field:
The utility model relates to a kind of oil field compression fracture tubing string joint used, especially safety joint.
Background technology:
In the oil field compression fracture field, between tubing string, need to connect with joint.And the existing joint problem that tubing string can't propose while having the tubing string jam due to reasons in structure affects pressure break gap operating efficiency.
The utility model content:
The problem that while in order to solve existing joint, jam being arranged, tubing string can't propose.The utility model provides a kind of safety joint.This safety joint tubing string when the tubing string jam also can propose.
The technical solution of the utility model is: this safety joint comprises top connection, lower contact and locating slide sleeve.Positive internal thread is arranged in top connection, lower contact is lower outside external screw thread, top connection is connected to outside lower contact by left-hand thread, lower contact under top connection is outer is connected with adjustable ring by left-hand thread, and the locating slide sleeve bottom is fixed in lower contact by fixing pin, and the boss of annular is arranged outside locating slide sleeve top, 4 gap are axially arranged on boss, top connection top is connected with 4 shop bolts, and shop bolt the inner is placed in gap, and locating slide sleeve up and down outer ring groove is built-in with sealing ring.
The utlity model has following beneficial effect: this safety joint has positive internal thread in adopting in top connection, lower contact is lower outside external screw thread, top connection is connected to outside lower contact by left-hand thread, lower contact under top connection is outer is connected with adjustable ring by left-hand thread, the locating slide sleeve bottom is fixed in lower contact by fixing pin, the boss that annular is arranged outside locating slide sleeve top, 4 gap are axially arranged on boss, top connection top is connected with 4 shop bolts, shop bolt the inner is placed in gap, and locating slide sleeve up and down outer ring groove is built-in with the structure of sealing ring.Utilize the left-hand thread between top connection and lower contact, tubing string can propose smoothly when the tubing string jam.This safety joint tubing string when the tubing string jam also can propose thus.
The accompanying drawing explanation:
Accompanying drawing 1 is the utility model structural representation.
1-top connection in figure, 2-top connection, 3-locating slide sleeve, 4-adjustable ring, 5-fixing pin, 6-shop bolt.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in the figure, this safety joint comprises top connection 1, lower contact 2 and locating slide sleeve 3.Positive internal thread is arranged in top connection 1, lower contact 2 is lower outside external screw thread, top connection 1 is connected to outside lower contact 2 by left-hand thread, lower contact 2 under top connection 1 is outer is connected with adjustable ring 4 by left-hand thread, locating slide sleeve 3 bottoms are fixed in lower contact 2 by fixing pin 5, the boss that annular is arranged outside locating slide sleeve 3 tops, 4 gap are axially arranged on boss, top connection 1 top is connected with 4 shop bolts 6, shop bolt 6 the inners are placed in gap, locating slide sleeve Shang Xia 3 the outer ring groove be built-in with sealing ring.
During actual the use, this safety joint is connected on tubing string, on tubing string is direct without jam phenomenon tubing string, carries.When tubing string has jam, the forward tubing string, top connection 1 is opened with the left-hand thread that lower contact 2 is connected, then, on carry this safety joint top tubing string, on carried and descended again macaroni counter-rotating, macaroni is connected with the left-hand thread of lower contact 2, finally bottom is proposed, and completes fracturing operation.
Claims (1)
1. safety joint, comprise top connection (1), lower contact (2) and locating slide sleeve (3), it is characterized in that: in top connection (1) is upper, positive internal thread is arranged, lower contact (2) is lower outside external screw thread, top connection (1) is connected to outside lower contact (2) by left-hand thread, lower contact (2) under top connection (1) is outer is connected with adjustable ring (4) by left-hand thread, locating slide sleeve (3) bottom is fixed in lower contact (2) by fixing pin (5), the boss that annular is arranged outside locating slide sleeve (3) top, 4 gap are axially arranged on boss, top connection (1) top is connected with 4 shop bolts (6), shop bolt (6) the inner is placed in gap, locating slide sleeve (3) up and down outer ring groove is built-in with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203758661U CN203296712U (en) | 2013-06-20 | 2013-06-20 | Safety joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203758661U CN203296712U (en) | 2013-06-20 | 2013-06-20 | Safety joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296712U true CN203296712U (en) | 2013-11-20 |
Family
ID=49572730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203758661U Expired - Fee Related CN203296712U (en) | 2013-06-20 | 2013-06-20 | Safety joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669193A (en) * | 2015-02-11 | 2015-06-03 | 中国海洋石油总公司 | Push-pull tool |
| CN110761279A (en) * | 2019-11-06 | 2020-02-07 | 上海渊丰地下工程技术有限公司 | Construction method and construction device for air-hardening cement mixing pile |
| CN114198030A (en) * | 2020-09-18 | 2022-03-18 | 中国石油天然气股份有限公司 | Safety joint and layering water control pipe column |
-
2013
- 2013-06-20 CN CN2013203758661U patent/CN203296712U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669193A (en) * | 2015-02-11 | 2015-06-03 | 中国海洋石油总公司 | Push-pull tool |
| CN104669193B (en) * | 2015-02-11 | 2016-08-24 | 中国海洋石油总公司 | A kind of push-and-pull instrument |
| CN110761279A (en) * | 2019-11-06 | 2020-02-07 | 上海渊丰地下工程技术有限公司 | Construction method and construction device for air-hardening cement mixing pile |
| CN114198030A (en) * | 2020-09-18 | 2022-03-18 | 中国石油天然气股份有限公司 | Safety joint and layering water control pipe column |
| CN114198030B (en) * | 2020-09-18 | 2023-08-22 | 中国石油天然气股份有限公司 | Safety joint and layered water control pipe column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DAQING HONGBO SHENGDA PETROLEUM MACHINERY EQUIPMEN Free format text: FORMER OWNER: SHI LINGCHUN Effective date: 20140630 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 163453 DAQING, HEILONGJIANG PROVINCE TO: 163000 DAQING, HEILONGJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140630 Address after: 163000 in Heilongjiang province in G District of Daqing City Ranghulu District Olin Business District Residence Internazionale business service center A business services 2717 Patentee after: Daqing Hongbo Shengda Petroleum Machinery Equipment Co Ltd Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Olin Residence Internazionale SOHO Patentee before: Shi Lingchun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20170620 |